Show MUFFLING 0 GAS ENGINE ENGIN t good plan to exhaust into buried expansion chamber k point to be observed Obier ved ignot not to create back breasure Pre fure asure which will materially teri ally decrease power of engine in ili response to a query BS as to old heit be st plan to deaden the sound from a gasoline engine in ili the ho cellar F NY ives ic of tile tho ohio state university makes the HIP following follow ln reply to deaden the alie exhaust of a gasoline engine some boino sort ort of it 11 muffler must he be escil sed the point to in lie be observed js As notto not to create buck back pressure an liali vv decrease lie power potter of tho the engine an effective way to cuillo tile tho engine tit in question would ho be to ti air I 1 inest into nto a buril j expansion chain b which illicit la Is connected to tho the outside A C to muffle an n engine the accompanying sketch ketch will mill ga lie reader a clear idea how to cou coll the cli chamber amber it it Is not practical to gd BO through ough tit alm bottom of the wull ns as indicated the alio exhaust pipes pipe could bo be led hd to tal lir top of the expansion chamber with this arrangement the chamber would riot not need to be so BO deep and would not be so effective i because of the long piat from tho the engine it if the cellar drain la Is inadequate the latter bo be more practical to install |